Robert Cimikowski, Don Coppersmith
Discrete Mathematics
A new algorithm for computing Hadamard transforms is presented. If n is a power of four, then the new algorithm uses ⅞ n logn multiply/adds to compute a Hadamard transform of length n. © 1994 IEEE
Robert Cimikowski, Don Coppersmith
Discrete Mathematics
Ephraim Feig, Elliot Linzer
IS&T/SPIE Electronic Imaging 1991
Don Coppersmith
IEEE Trans. Inf. Theory
Don Coppersmith
Journal of Cryptology